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Worldwide investment in nanotechnology increased from $432 million in 1997 to about $4.1 billion in 2005. [3]: 1–3 Because nanotechnology is a recent development, the health and safety effects of exposures to nanomaterials, and what levels of exposure may be acceptable, is not yet fully understood.
Ethics of nanotechnology is the study of the ethical issues emerging from advances in nanotechnology and its impacts.. According to Andrew Chen, ethical concerns about nanotechnologies should include the possibility of their military applications, the dangers posed by self-replicant nanomachines, and their use for surveillance monitoring and tracking. [1]
Why the Future Doesn't Need Us" is an article written by Bill Joy (then Chief Scientist at Sun Microsystems) in the April 2000 issue of Wired magazine. In the article, he argues that "Our most powerful 21st-century technologies— robotics , genetic engineering , and nanotech —are threatening to make humans an endangered species ."
Nanotechnology is the science and engineering of functional systems at the molecular scale. In its original sense, nanotechnology refers to the projected ability to construct items from the bottom up making complete, high-performance products. One nanometer (nm) is one billionth, or 10 −9, of a meter.
The environmental impact of nanotechnology is the possible effects that the use of nanotechnological materials and devices will have on the environment. [20] As nanotechnology is an emerging field, there is debate regarding to what extent industrial and commercial use of nanomaterials will affect organisms and ecosystems.
In media appearances, Kurzweil has stressed nanotechnology's extreme potential dangers [14] but argues that, in practice, progress cannot be stopped because that would require a totalitarian system, and any attempt to do so would drive dangerous technologies underground and deprive responsible scientists of the tools needed for defense. He ...
Nanotoxicology is the study of the toxicity of nanomaterials. [1] Because of quantum size effects and large surface area to volume ratio, nanomaterials have unique properties compared with their larger counterparts that affect their toxicity.
Nanotechnology has the potential to benefits all forms of work from daily life to medicine and biology. Despite these benefits, there are also health risks when it comes to human exposure to the nano material. Studies have shown that dangerous nano-particles can build up in the body after prolonged exposure.